Year	%
2002	9.8
2003	8.4
2004	9.36
2005	8.56
2006	8.85
2007	8.88
2008	8.99
2009	9
2010	8.33
2011	8.27
2012	9.33
2013	8.99
2014	8.58
2015	9.6
2016	10.56
2017	10.26
2018	10.95
2019	11.11